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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7686) Re-add rapid rescan of possibly corrupt block feature to the block scanner
Date Thu, 12 Feb 2015 03:27:12 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14317512#comment-14317512
] 

Hadoop QA commented on HDFS-7686:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12698219/HDFS-7686.002.patch
  against trunk revision fe689d3.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:red}-1 core tests{color}.  The following test timeouts occurred in hadoop-hdfs-project/hadoop-hdfs:

org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover
org.apache.hadoop.hdfs.server.namenode.ha.TestHAAppend

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/9550//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9550//console

This message is automatically generated.

> Re-add rapid rescan of possibly corrupt block feature to the block scanner
> --------------------------------------------------------------------------
>
>                 Key: HDFS-7686
>                 URL: https://issues.apache.org/jira/browse/HDFS-7686
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Rushabh S Shah
>            Assignee: Colin Patrick McCabe
>            Priority: Blocker
>         Attachments: HDFS-7686.002.patch
>
>
> When doing a transferTo (aka sendfile operation) from the DataNode to a client, we may
hit an I/O error from the disk.  If we believe this is the case, we should be able to tell
the block scanner to rescan that block soon.  The feature was originally implemented in HDFS-7548
but was removed by HDFS-7430.  We should re-add it.



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